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| """Shared helpers for the cloud data warehouse environment.""" |
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|
| from __future__ import annotations |
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|
| import copy |
| import re |
| from datetime import datetime |
| from typing import Any, Dict, Iterable, Optional |
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| RUNTIME_NOW = "2026-06-01T00:00:00Z" |
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| ID_PREFIXES: Dict[str, str] = { |
| "organization": "org", |
| "user": "user", |
| "warehouse": "wh", |
| "dataset": "ds", |
| "table": "tbl", |
| "column": "col", |
| "access_grant": "grant", |
| "query_job": "query", |
| "import_job": "import", |
| "export_job": "export", |
| "cost_usage_record": "usage", |
| "quota_policy": "quota", |
| } |
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|
| LEGACY_ID_PREFIXES: Dict[str, str] = { |
| "organization": "ORG", |
| "dataset": "DST", |
| "table": "TBL", |
| "query_job": "QRY", |
| } |
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|
| def success_response(data: Dict[str, Any], message: str = "") -> Dict[str, Any]: |
| return {"status": "success", "data": data, "message": message} |
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|
| def error_response(error_code: str, message: str) -> Dict[str, Any]: |
| return {"status": "error", "data": {}, "message": f"{error_code}: {message}"} |
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|
| def safe_copy(value: Any) -> Any: |
| return copy.deepcopy(value) |
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|
| def now_iso() -> str: |
| return RUNTIME_NOW |
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| def slugify(value: Any) -> str: |
| text = str(value or "").strip().lower() |
| text = re.sub(r"[^a-z0-9]+", "-", text).strip("-") |
| return text or "untitled" |
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| def org_slug(org_id: str) -> str: |
| return org_id[4:] if isinstance(org_id, str) and org_id.startswith("org-") else slugify(org_id) |
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| def build_humanized_id(entity_type: str, record: Dict[str, Any], *, existing_ids: Optional[Iterable[str]] = None) -> str: |
| existing = set(existing_ids or []) |
| prefix = ID_PREFIXES.get(entity_type, entity_type) |
| if entity_type == "dataset": |
| base = f"ds-{org_slug(record.get('org_id', 'org'))}-{slugify(record.get('business_domain') or record.get('name'))}" |
| elif entity_type == "table": |
| dataset_id = str(record.get("dataset_id") or "") |
| dataset_slug = dataset_id[3:] if dataset_id.startswith("ds-") else slugify(dataset_id) |
| base = f"tbl-{dataset_slug}-{slugify(record.get('name'))}" |
| elif entity_type == "quota_policy": |
| scope = "warehouse-cap" if record.get("warehouse_id") else "monthly" |
| base = f"quota-{org_slug(record.get('org_id', 'org'))}-{slugify(record.get('resource_group'))}-{scope}" |
| else: |
| base = f"{prefix}-{slugify(record.get('name') or record.get('display_name') or entity_type)}" |
| candidate = base |
| index = 2 |
| while candidate in existing: |
| candidate = f"{base}-{index}" |
| index += 1 |
| return candidate |
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|
| def is_iso_datetime(value: Any) -> bool: |
| if not isinstance(value, str): |
| return False |
| try: |
| datetime.strptime(value, "%Y-%m-%dT%H:%M:%SZ") |
| return True |
| except ValueError: |
| return False |
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|
| def is_date(value: Any) -> bool: |
| if not isinstance(value, str): |
| return False |
| try: |
| datetime.strptime(value, "%Y-%m-%d") |
| return True |
| except ValueError: |
| return False |
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| def datetime_gt(left: str, right: str) -> bool: |
| return datetime.strptime(left, "%Y-%m-%dT%H:%M:%SZ") > datetime.strptime(right, "%Y-%m-%dT%H:%M:%SZ") |
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